<template>
    <div id="app">
        <el-upload class="avatar-uploader" action="api/uploadFile" show-file-list :data="imgData"
            :on-success="handleAvatarSuccess" :before-upload="beforeAvatarUpload">
            <img v-if="imageUrl" :src="imageUrl" class="avatar">
            <i v-else class="el-icon-plus avatar-uploader-icon"></i>
        </el-upload>
        <span>上传图片</span>
    </div>
</template>
<script>
export default {
    data () {
        return {
            imageUrl: '',
            imgData: { name: '张三' }
        }
    },
    methods: {
        handleAvatarSuccess (res, file) {
            console.log(res, file)
            this.imageUrl = URL.createObjectURL(file.raw)
        },
        beforeAvatarUpload (file) {
            const isJPG = file.type === 'image/jpeg'
            const isLt2M = file.size / 1024 / 1024 < 2

            if (!isJPG) {
                this.$message.error('上传头像图片只能是 JPG 格式!')
            }
            if (!isLt2M) {
                this.$message.error('上传头像图片大小不能超过 2MB!')
            }
            return isJPG && isLt2M
        }
    },
    created () {
    }
}
</script>
<style>
.avatar-uploader .el-upload {
    border: 1px dashed #d9d9d9;
    border-radius: 6px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}
.avatar-uploader .el-upload:hover {
    border-color: #409EFF;
}

.avatar-uploader-icon {
    font-size: 28px;
    color: #8c939d;
    width: 178px;
    height: 178px;
    line-height: 178px;
    text-align: center;
}

.avatar {
    width: 178px;
    height: 178px;

}
</style>
<style scoped>
.box {
    margin-top: 20px;
}

.data {
    margin-top: 20px;
}

#app {
    text-align: center;
    margin-top: 60px;
}
</style>
